• derived nodes inherit all messages from their base classes
  
• see reset method for default settings
  
• the list of points can be created by any combination of point messages and files
  
• the point file can be any number of X Y Z corrdinate triplets separated by spaces
  
• the orientation at a point is along the line connecting the next and last points
  
• the set/value/position message establishes the decimal percentage between the first and last points
  

constructor pointFollower

destructor ~pointFollower

method reset

1 set the position to 0.0
2 set upright to false
3 clear the points list

method message

1 load a point file
2 local a point file (deprecated)
3 add a point to the point list
4 add a point to the point list
5 set the percentage along the point path
6 set the percentage along the point path (deprecated)
7 set the pitch to remain upright

method loadPath

method interpolate

constructor pointFollowerCatmullRomCurve

method setControlPoints

method value

method tangent

method computeCoefficients